Abstract:
AN INTEGRATED CIRCUIT IS PROVIDED WHEREIN A TRANSISTOR STRUCTURE IS COMPRISED OF A SINGLE CRYSTAL OF SEMICONDUCTOR MATERIAL EMBEDDED IN A SUBSTRATE AND HAVING AN EXPOSED SURFACE SUBSTANTIALLY COPLANAR WITH A SUBSTRATE SURFACE. THE CRYSTAL IS ELECTRICALLY ISOLATED FROM THE SUBSTRATE BY A LAYER OF INSULATING OXIDE DISPOSED BETWEEN THE CRYSTAL AND THE SUBSTRATE. THE CRYSTAL IS DIVIDED INTO A COLLECTOR REGION, A BASE REGION AND AN EMITTER REGION WHICH ARE DISPOSED GENERALLY IN EDGE-TO-EDGE RELATIONSHIP. AN INSULATING FILM IS DISPOSED OVER THE SURFACE OF THE SUBSTRATE AND THE SURFACE OF THE CRYSTAL, AND METALLIC TERMINALS EXTEND THROUGH APERTURES IN THE INSULTING FILM INTO CONTACT WITH EACH OF THE ACTIVE REGIONS.
Abstract:
A flashlight including a reusable reflector unit and a replaceable battery unit, where all of the electrical connections between lamp, batteries and switch are permanent, and are encased within the battery unit.
Abstract:
958,249. Semi-conductor circuits. TEXAS INSTRUMENTS Inc. May 6, 1960 [May 6, 1959], No. 46090/63. Divided out of 958,242. Heading H1K. The subject-matter of the Specification is included in Specification 958,242. The claims relate to a circuit comprising a monocrystalline semi-conductor wafer containing a plurality of first regions, each of which overlies a second region with which it forms a PN-junction extending to a major wafer face and there defining an enclosed area. The wafer includes an elongated portion providing a current path parallel to said face with one end connected to a bias potential and the other ohmically connected to said second regions. Input connections are provided on the first regions. Specifications 945,734, 945,737, 958,244, 958,245, 958,246, 958,247 and 958,248 also are referred to.
Abstract:
Disclosed is a method of forming a single-sided or a doublesided circuit board with mounted semiconductor devices. The metal conductors on the circuit board are interconnected by wires embedded in the board itself, thereby dispensing with the need for a multilayered circuit board.